EP 2707988 B1 20160210 - DISCOVERY OF SECURITY ASSOCIATIONS FOR KEY MANAGEMENT RELYING ON PUBLIC KEYS
Title (en)
DISCOVERY OF SECURITY ASSOCIATIONS FOR KEY MANAGEMENT RELYING ON PUBLIC KEYS
Title (de)
ENTDECKUNG VON SICHERHEITSASSOZIATIONEN ZUR SCHLÜSSELVERWALTUNG AUF DER BASIS VON ÖFFENTLICHEN SCHLÜSSELN
Title (fr)
DÉCOUVERTE D'ASSOCIATIONS DE SÉCURITÉ POUR UNE GESTION DE CLÉS BASÉE SUR DES CLÉS PUBLIQUES
Publication
Application
Priority
- US 201161484868 P 20110511
- US 201113173079 A 20110630
- US 2012035355 W 20120427
Abstract (en)
[origin: WO2012154422A1] Techniques are disclosed for forming a discoverable security association in communication environments and for lawfully discovering security associations formed in communication environments. For example, a method for forming a discoverable security association between a first computing device and a second computing device comprises the following steps. The first computing device obtains from a key management entity." (i) a first private key assigned to the first computing device, which is computationally associative with a first public key associated with the first computing device; and (ii) a first root key assigned to the first computing device. The first computing device chooses a first random value and generating a first nonce, wherein the first nonce is a result of an encryption of the first random value using the first root key. The first computing device generates a first key component based on the first random value. The first computing device encrypts the first nonce and the first key component with a second public key associated with the second computing device using an identity-based encryption process and sends the encrypted first nonce and the encrypted first key component to the second computing device so as to establish a security association with the second computing device. The security association is discoverable by a third computing device unbeknownst to the first computing device and the second computing device.
IPC 8 full level
H04L 9/08 (2006.01); H04L 29/06 (2006.01)
CPC (source: EP KR US)
H04L 9/08 (2013.01 - KR); H04L 9/0894 (2013.01 - EP US); H04L 63/0442 (2013.01 - EP US); H04L 63/30 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012154422 A1 20121115; CN 103534975 A 20140122; CN 103534975 B 20160907; EP 2707988 A1 20140319; EP 2707988 B1 20160210; JP 2014514889 A 20140619; JP 5727093 B2 20150603; KR 101516909 B1 20150504; KR 20130140873 A 20131224; US 2012288092 A1 20121115; US 8644510 B2 20140204
DOCDB simple family (application)
US 2012035355 W 20120427; CN 201280022167 A 20120427; EP 12721992 A 20120427; JP 2014510351 A 20120427; KR 20137029745 A 20120427; US 201113173079 A 20110630